Linux 2.6.31.6
[linux/fpc-iii.git] / arch / arm / mach-s3c2400 / gpio.c
blob6c68e78f359579055b60ef63140eb63d322d4114
1 /* linux/arch/arm/mach-s3c2400/gpio.c
3 * Copyright (c) 2006 Lucas Correia Villa Real <lucasvr@gobolinux.org>
5 * S3C2400 GPIO support
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #include <linux/kernel.h>
23 #include <linux/init.h>
24 #include <linux/module.h>
25 #include <linux/interrupt.h>
26 #include <linux/ioport.h>
27 #include <linux/io.h>
29 #include <mach/hardware.h>
30 #include <asm/irq.h>
32 #include <mach/regs-gpio.h>
34 int s3c2400_gpio_getirq(unsigned int pin)
36 if (pin < S3C2410_GPE(0) || pin > S3C2400_GPE(7))
37 return -EINVAL; /* not valid interrupts */
39 return (pin - S3C2410_GPE(0)) + IRQ_EINT0;
42 EXPORT_SYMBOL(s3c2400_gpio_getirq);